package com.ruoyi.web.controller.common;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.ruoyi.common.config.FileUploadProper;
import com.ruoyi.framework.config.ExceptionThrower;
import com.ruoyi.framework.enums.ErrorInfo;
import com.ruoyi.system.domain.greatWall.SysFiles;
import com.ruoyi.system.domain.util.DeCompressUtil;
import com.ruoyi.system.domain.util.FileUtil;
import com.ruoyi.system.enums.FileType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;

/**
 * 通用请求处理
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);


    @Autowired
    private ServerConfig serverConfig;


    private static final String FILE_DELIMETER = ",";

    @Autowired
    private FileUploadProper fileUploadProperties;

    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", FileUtils.getName(fileName));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    public AjaxResult uploadFiles(List<MultipartFile> files) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files)
            {
                // 上传并返回新文件名称
                String fileName = FileUploadUtils.upload(filePath, file);
                String url = serverConfig.getUrl() + fileName;
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            AjaxResult ajax = AjaxResult.success();
            ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 三位压缩包上传
     */
    //@PostMapping("/uploadRelic")
    public AjaxResult uploadRelic(MultipartFile file) throws Exception {
        // 校验文件类型
        FileType fileType = FileUtil.getType(file.getInputStream());
        if (fileType == null) {
            ExceptionThrower.of(ErrorInfo.UNSUPPORTED_FILE_TYPE);
        }

        int begin = file.getOriginalFilename().indexOf(".");
        int last = file.getOriginalFilename().length();
        String a = file.getOriginalFilename().substring(begin, last);

        // zip文件验签
/*        if (FileType.ZIP.equals(fileType)) {
            log.info("验证文件{}", file.getName());
            boolean verify = verify(file);
            if (!verify) {
                ExceptionThrower.of(ErrorInfo.UNSIGNED_FILE);
            }
            log.info("验证通过 {}", file.getName());
        }*/

        // 上传
        SysFiles sysFile = convertMultipartFileToSysFile(file);
        File realFile = new File(sysFile.getLocalPath());
        file.transferTo(realFile);

        // 解压
        // if (FileType.ZIP.equals(fileType)) {
        if(".zip".equals(a)){

            new Thread(() -> {
                try {
                    log.info("开始解压....");

                    log.info("绝对路径:"+sysFile.getLocalPath()+";destDir:"+fileUploadProperties.getMappingPath() + "/" + fileUploadProperties.getApplicationName() + "/zip/" + sysFile.getUniName().replace(".zip", ""));
                    DeCompressUtil.deCompress(sysFile.getLocalPath(),
                            fileUploadProperties.getMappingPath() + "/" + fileUploadProperties.getApplicationName() + "/zip/" + sysFile.getUniName().replace(".zip", "")
                    );
                    log.info("解压完成");
                    log.info("解压路径{}", sysFile.getLocalPath());
                    // 删除压缩文件
                    realFile.delete();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }).start();


//            /data/zip/fe07dc68-f7b1-4d32-ae1f-8123fe117383/index.html
//            E:/Dev/msm_data_mapping/msm-admin/zip/fe07dc68-f7b1-4d32-ae1f-8123fe117383.zip
            // 异步解压移除此代码
//            if (!new File(sysFile.getLocalPath().replace(".zip", "") + "/index.html").exists()) {
//                ExceptionThrower.of(ErrorInfo.UNFORMAT_ARCHIVE);
//            }
        }
        AjaxResult ajax = AjaxResult.success();
        ajax.put("url",sysFile.getUrlPath());
        ajax.put("fileName",sysFile.getOriName());
        ajax.put("newFileName",sysFile.getUniName());
        ajax.put("originalFilename",file.getOriginalFilename());

        return ajax;
    }

    SysFiles convertMultipartFileToSysFile(MultipartFile file) throws IOException {
        FileType fileType = FileUtil.getType(file.getInputStream());

        SysFiles sysFile = new SysFiles();

        System.out.println("文件名:"+file.getOriginalFilename());
        System.out.println(file.getContentType());
        String strType = FileUtil.getStrType(file);

        sysFile.setOriName(file.getOriginalFilename());
        sysFile.setUniName(FileUtil.toUniFileName(file));
        sysFile.setLocalPath(
                fileUploadProperties.getMappingPath()
                        + "/" + fileUploadProperties.getApplicationName()
                        + "/" + strType + "/"
                        + sysFile.getUniName()

        );

        String urlPath = null;
        if (FileType.ZIP.equals(fileType)) {
            urlPath = fileUploadProperties.getUrl() + "/" + strType + "/"
                    + FileUtil.getFileNameNoExt(sysFile.getUniName()) + "/index.html";
        } else {
            urlPath = fileUploadProperties.getUrl() + "/" + strType + "/" + sysFile.getUniName();
        }

        sysFile.setUrlPath(urlPath);
        // set size with kb
        sysFile.setSize(file.getSize() / 1024);
        return sysFile;
    }

    /**
     * 三位压缩包上传
     */
    @PostMapping("/uploadRelic")
    public AjaxResult uploadRelic3d(MultipartFile file) {
        try {
            // 上传文件路径 D:/ruoyi/uploadPath/zip/
            String filePath = RuoYiConfig.getUploadPath() + "/zip";
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            //原文件名
            String oldFileName = "/"+file.getOriginalFilename();

            //原文件后缀名
            String fileSuffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));

            String sourceFile=(filePath+oldFileName).replace("\\\\","/");
            //分割后缀名
            String destDir=sourceFile.replace(fileSuffix,"");

            //文件根路径
            String localPath=filePath+oldFileName;
            File realFile = new File(localPath);

            new Thread(() -> {
                try {
                    log.info("开始解压....");

                    log.info("绝对路径:"+filePath);
                    DeCompressUtil.deCompress(sourceFile, destDir);
                    log.info("解压完成");
                    log.info("解压路径{}", localPath);
                    // 删除压缩文件
                    realFile.delete();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }).start();


            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName.replace(fileSuffix,"/index.html"));
            ajax.put("newFileName", FileUtils.getName(fileName));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        } catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }


}
